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* feature/gfid-access: Always send setattr down in overloaded setxattr.Kotresh HR2014-11-071-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: File ownership is not being preserved for root in geo-rep mountbroker setup. Analysis and Cause: Entry creations for geo-rep is overloaded in ga_setxattr. It happens in two phase, entry creation followed by setattr to preserve ownership as in master. If uid and gid of file being synced is root, setattr was not being sent down. Since, the file creation happens with non-root user in mountborker geo-rep setup, if setattr is not done explicitly, file ownership is not preserved for root. Solution: Always pass setattr down in overloaded ga_setxattr. Change-Id: I062215c1b2379d515f28ec7f271077ad37182c7e BUG: 1104954 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/9051 Reviewed-by: Aravinda VK <avishwan@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* api: versioned symbols in libgfapi.so for compatibilityKaleb S. KEITHLEY2014-11-071-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use versioned symbols to keep libgfapi at libgfapi.so.0.0.0 Some nits uncovered: + there are a couple functions declared that do not have an associated definition, e.g. glfs_truncate(), glfs_caller_specific_init() + there are seven private/internal functions used by heal/src/glfsheal and the gfapi master xlator (glfs-master.c): glfs_loc_touchup(), glfs_active_subvol(), and glfs_subvol_done(), glfs_init_done(), glfs_resolve_at(), glfs_free_from_ctx(), and glfs_new_from_ctx(); which are not declared in glfs.h; + for this initial pass at versioned symbols, we use the earliest version of all public symbols, i.e. those for which there are declarations in glfs.h or glfs-handles.h. Further investigation as we do backports to 3.6, 3.4, and 3.4 will be required to determine if older implementations need to be preserved (forward ported) and their associated alias(es) and symbol version(s) defined. FWIW, we should consider linking all of our libraries with a map, it'll result in a cleaner ABI. Perhaps something for an intern to do or a Google Summer of Code project. Change-Id: I499456807a5cd26acb39843216ece4276f8e9b84 BUG: 1160709 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/9036 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* barrier: Correct gfid in statedump of barriered fopsggarg2014-11-062-14/+145
| | | | | | | | | | | | | | | | In brick statedump file the barriered fop's gfid was showing 0 when statedump was taken. This is because of statedump code was not referring to correct gfid. With this change statedump code will use correct gfid and gfid will not be 0 in statedump file when barrier is enable and user takes statedump of volume. Change-Id: Ia296cba7e132402df53c602daa160c1c2cd21245 BUG: 1099369 Reviewed-on: http://review.gluster.org/7893 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* glusterd : release cluster wide locks in op-sm during failuresAtin Mukherjee2014-11-064-69/+183
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glusterd op-sm infrastructure has some loophole in handing error cases in locking/unlocking phases which ends up having stale locks restricting further transactions to go through. This patch still doesn't handle all possible unlocking error cases as the framework neither has retry mechanism nor the lock timeout. For eg - if unlocking fails in one of the peer, cluster wide lock is not released and further transaction can not be made until and unless originator node/the node where unlocking failed is restarted. Following test cases were executed (with the help of gdb) after applying this patch: * RPC timesout in lock cbk * Decoding of RPC response in lock cbk fails * RPC response is received from unknown peer in lock cbk * Setting peerinfo in dictionary fails while sending lock request for first peer in the list * Setting peerinfo in dictionary fails while sending lock request for other peers * Lock RPC could not be sent for peers For all above test cases the success criteria is not to have any stale locks Change-Id: Ia1550341c31005c7850ee1b2697161c9ca04b01a BUG: 1154635 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/9012 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* glupy: portability fixesEmmanuel Dreyfus2014-11-053-13/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes portability problems so that NetBSD passes tests/features/glupy.t - Use python-config to detect python build environment on all systems, not just Linux and Darwin. - Get the site-package directory from python and make sure we install glupy.py there, Previously we installed within glusterfs prefix, which caused a problem if it was different that python's prefix. - Set PYTHONPATH for tests so that the detected site-packages is used in python's search path. This should be useless, but let us have it just in case. - Pass glupy.so path from glusterfsd to glupy.py through an environment variable and use it in CDLL instead of "", as the later seems not portable (at least it fails on NetBSD). - Use gil_init_key pthread_getspecific to avoid deadlocks (that code was #ifdef out, perhaps because it was not needed on Linux, but it seems to be required for NetBSD. - Recover the error message from Python and send it to the logs to help debugging problems. BUG: 1129939 Change-Id: Icc71e77d6940f0759cc14c5c5cf7ca6fa431e0d2 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8978 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* uss/gluster: Fix typo error in the description for USS under "gluster volumevmallika2014-11-051-1/+1
| | | | | | | | | | | | | | | | | set help" gluster volume set help for uss shows "User Servicable Snapshots" whereas it should be "User Serviceable Snapshots" Change-Id: I3cc8b3ea2cb6d209e1a12678eb7d0e68f4160d99 BUG: 1160236 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/9041 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* storage/posix: Treat ENODATA/ENOATTR as success in bulk removexattrPranith Kumar K2014-11-051-0/+14
| | | | | | | | | | | | | | | | | Bulk remove xattr is internal fop in gluster. Some of the xattrs may have special behavior. Ex: removexattr("posix.system_acl_access"), removes more than one xattr on the file that could be present in the bulk-removal request. Removexattr of these deleted xattrs will fail with either ENODATA/ENOATTR. Since all this fop cares is removal of the xattrs in bulk-remove request and if they are already deleted, it can be treated as success. Change-Id: Id8f2a39b68ab763ec8b04cb71b47977647f22da4 BUG: 1160509 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9049 Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Preserve errno in case of failures on all subvolsPranith Kumar K2014-11-051-5/+16
| | | | | | | | | | | | | | | | | | | | Problem: When quorum is enabled and the fop fails on all the subvolumes, op_errno is set to EROFS which overrides the actual errno returned from bricks. Fix: Don't override the errno when fop fails on all subvols. Change-Id: I61e57bbf1a69407230ec172a983de18d1c624fd2 BUG: 1157976 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8984 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* xlator/io-stat: Check and copy loc->pathShyam2014-11-051-3/+9
| | | | | | | | | | | | | | | | | | Cases where loc->path is NULL, the current code in create/open/mkdir would copy the same blindly and as a result coredump. This is a preventive fix for the coredump. The reason for loc->path to be NULL in certain cases is yet to be determined. One such case is when resolve_loc_touchup fails to get inode_path due to loops in the inode table. Change-Id: Ic2ddf2cc9f2acaf9b939afc11afd193b4402ee7c BUG: 1159221 Signed-off-by: Shyam <srangana@redhat.com> Reviewed-on: http://review.gluster.org/9029 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/quota: Use per-volume log file for crawlerKrutika Dhananjay2014-11-031-6/+8
| | | | | | | | | | | Change-Id: I195b3309bae7e684b7dbf771e4f3b4778d0dac4c BUG: 1146377 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8843 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* Cluster/DHT : Fixed crash due to null derefNithya Balachandran2014-11-031-2/+3
| | | | | | | | | | | | | | | | A lookup on a linkto file whose trusted.glusterfs.dht.linkto xattr points to a subvol that is not part of the volume can cause the brick process to segfault due to a null dereference. Modified to check for a non-null value before attempting to access the variable. Change-Id: Ie8f9df058f842cfc0c2b52a8f147e557677386fa BUG: 1159571 Signed-off-by: Nithya Balachandran <nbalacha@redhat.com> Reviewed-on: http://review.gluster.org/9034 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: venkatesh somyajulu <vsomyaju@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd/geo-rep: Fix glusterd crash in non-originator slave node.Kotresh HR2014-11-021-0/+1
| | | | | | | | | | | | | | | | | | | | Problem: glusterd crashes in non-originator slave node during geo-rep create push-pem. Cause: In glusterd_op_copy_file, the value of the key "common_pem_contents" is freed explicitly even after dict_set is successful when it is taken cared by dict_free. Solution: Free only in failure cases before dict_set. Change-Id: I65b5f32ee2b946107ad279b1fe3d728ec699bc7e BUG: 1159119 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/9018 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Poornima G <pgurusid@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* rebalance: ``check_free_space`` should ignore quota_statfsHarshavardhana2014-10-311-10/+33
| | | | | | | | | | | | | | | | | | | | | quota_statfs() returns aggregated details of space usage of bricks this causes distribute to be confused during ``rebalance``, where ``statfs()`` values are used to schedule file migration. We can make sure the values of ``statfs`` are from individual bricks by selectively instructing ``quota_statfs()`` to return non aggregated values. Change-Id: I1397faeee66a1b9c26709cfda693286d227a4170 BUG: 1158262 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/8996 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: N Balachandran <nbalacha@redhat.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Perform post-op in entry selfheal inside locksKrutika Dhananjay2014-10-311-3/+31
| | | | | | | | | | | | | | | | | Take entrylks in xlator domain before doing post-op (undo-pending) in entry self-heal. This is to prevent a parallel name self-heal on an entry under @fd->inode from reading pending xattrs while it is being modified by SHD after entry sh below, given that name self-heal takes locks ONLY in xlator domain and is free to read pending changelog in the absence of the following locking. Change-Id: Ie083ceab10155c460447f04bdce7688480f1ac4f BUG: 1128721 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/9020 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd: add option support for own-threadJeff Darcy2014-10-301-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | Like enabling SSL, enabling own-thread has to be done separately for clients and servers. * client.own-thread for clients (including internal like self-heal) * server.own-thread for servers (including e.g. glusterd) It's very unlikely that you would ever want to set one without the other, but they're separate anyway just in case. Check for "private polling thread" in the relevant logs to make sure the option took effect, because otherwise you might not notice any difference besides inreased performance. ;) Change-Id: Ifaee8de52f0b959bcdf7f6b56faeee549ee56604 BUG: 1158648 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/8931 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* features/snapview-server: verify the fs instance in revalidated lookups as wellRaghavendra Bhat2014-10-301-7/+53
| | | | | | | | | Change-Id: Id5f9d5a23eb5932a0a53520b08ffba258952e000 BUG: 1151004 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/8999 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Store rebalance state on all peersKaushal M2014-10-291-1/+11
| | | | | | | | | | | | | | | The rebalance state was being saved only on the peers participating in the rebalance on a rebalance start. This change makes sure all nodes save the rebalance state. Change-Id: I436e5c34bcfb88f7da7378cec807328ce32397bc BUG: 1157979 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/8998 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* Avoid spurious EINVAL in posix_readdir()Emmanuel Dreyfus2014-10-292-3/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | On non Linux systems, we check that seekdir() succeeds and we return EINVAL if it does not. We need this to avoid infinite loops if some other component in GlusterFS makes an invalid seekdir() usage. This was introduced in this change: http://review.gluster.org/#/c/8760/ But seekdir() also fails when using the offset returned for the last entry, and this is expected behavior. As a result, the seekdir() test produces a spurious EINVAL when reaching end of directory. That error is not propagated to calling process, but it may harm internal GlusterFS processing. At least it produce a spurious error message in brick's log. We fix the problem by remembering the last entry offset in fd private data. When a new posix_readdir() invocation requests that offset, we avoid returning EINVAL. BUG: 1129939 Change-Id: I4e67a2ea46538aae63eea663dd4aa33b16ad24c7 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8926 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* feature/changelog: Fix changelog missing SETATTR entries.Kotresh HR2014-10-292-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | Problem: Valid SETATTR entries are missing in changelog when more than one metadata operation happen on same inode within changelog roll-over time. Cause: Metadata entries with fop num being GF_FOP_NULL are logged in changelog which is of no use. Since slice version checking is done for metadata entries to avoid logging of subsequent entries of same inode falling into same changelog, if the entry with GF_FOP_NULL is logged first, subsequent valid ones will be missed. Solution: Have a boundary condition to log only those fops whose fop number falls between GF_FOP_NULL and GF_FOP_MAXVALUE. Change-Id: Iff585ea573ac5e521a361541c6646225943f0b2d BUG: 1104954 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/8964 Reviewed-by: Aravinda VK <avishwan@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* glusterd: op state machine shouldn't use global peer listAtin Mukherjee2014-10-284-11/+42
| | | | | | | | | | | | | | | | | | | | Problem : op state machine was relying on the global peer list while sending lock/stage/unlock commit rpc requests to the peers in the cluster. Trusting on global peer list structure is dangerous as this structure gets modified if any peer modification command is attempted in the cluster when there is a ongoing transaction going through the state machine. An ideal usecase of this problem when rebalance is in progress and peer probe is executed rebalance op-sm and peer probe may run into race making peerinfo structure go for toss. Solution: Use local copy of peer list (xaction_peers) in glusterd op-sm. Change-Id: I1ff7118dc6a9a72633e2e87b7ab7bae1796595e0 BUG: 1152890 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/8932 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* Posix: Brick failure detection fix for ext4 filesystemLalatendu Mohanty2014-10-281-6/+64
| | | | | | | | | | | | | | | | Issue: stat() on XFS has a check for the filesystem status but ext4 does not. Fix: Replacing stat() call with open, write and read to a new file under the "brick/.glusterfs" directory. This change will work for xfs, ext4 and other fileystems. Change-Id: Id03c4bc07df4ee22916a293442bd74819b051839 BUG: 1130242 Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com> Reviewed-on: http://review.gluster.org/8213 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* changelog: replace MAKE_HTIME_FILE_PATH with snprintf()Niels de Vos2014-10-281-7/+1
| | | | | | | | | | | | | | | | The used once MAKE_HTIME_FILE_PATH macro uses strcpy and strcat into a fixed buffer without checking the input lengths. Recommend replacing with a snprintf. Change-Id: Ia0245096774dc84be1b937e1d5750f3634fff034 BUG: 1099645 Reported-by: Keith Schincke <kschinck@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/8977 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* ec: Correctly handle xtime extended attributeXavier Hernandez2014-10-281-2/+39
| | | | | | | | | | Change-Id: I2bd34f063d6bf1835d5ae57a8e9aa03f3ec3deb3 BUG: 1156404 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8972 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/snapview-server: check if the reference to the snapshot world isRaghavendra Bhat2014-10-282-8/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | correct before doing any fop The following operations might lead to problems: * Create a file on the glusterfs mount point * Create a snapshot (say "snap1") * Access the contents of the snapshot * Delete the file from the mount point * Delete the snapshot "snap1" * Create a new snapshot "snap1" Now accessing the new snapshot "snap1" gives problems. Because the inode and dentry created for snap1 would not be deleted upon the deletion of the snapshot (as deletion of snapshot is a gluster cli operation, not a fop). So next time upon creation of a new snap with same name, the previous inode and dentry itself will be used. But the inode context contains old information about the glfs_t instance and the handle in the gfapi world. Directly accessing them without proper check leads to ENOTCONN errors. Thus the glfs_t instance should be checked before accessing. If its wrong, then right instance should be obtained by doing the lookup. Change-Id: Idca0c8015ff632447cea206a4807d8ef968424fa BUG: 1151004 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/8917 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: really get the inode size for a brickNiels de Vos2014-10-271-12/+17
| | | | | | | | | | | | | | | The device to get the inode size from does not get passed to the tool (tune2fs, xfs_info or the like) that is called. This is probably just an oversight. While correcting this, cleanup some bits of the function too. Change-Id: Ida45852cba061631fb304bc7dd5286df1a808010 BUG: 1130462 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/8492 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* ec: Fix rebalance issuesXavier Hernandez2014-10-275-113/+218
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some issues in ec xlator made that rebalance didn't complete successfully and generated some warnings and errors in the log. The most critical error was a race condition that caused false corruption detection when two specific operations were executed sequentially and they shared the same lock. This explains the problem: 1. A setxattr is issued. 2. setxattr: ec locks the inode before updating the xattr. 3. setxattr: The xattr is updated. 4. setxattr: Upper xlator is notified that the operation completed. 5. setxattr: A background task is initiated to update the version of the file. 6. A stat is issued on the same file. 7. stat: Since the lock is already acquired, it's reused. 8. stat: A lookup is issued to determine version and size information of the file. At this point, operations 5 and 8 can interfere. This can make that lookup sees different information on each brick, determining that some bricks are corrupted and incorrectly excluding them from the operation and initiating a self-heal. In some cases this false detection combined with self-heal could lead to invalid updates of the trusted.ec.size xattr, leaving the file smaller than it should be. This only happens if the first operation does not perform a lookup, because chained operations reuse the information returned by the previous one, avoiding this kind of problems. To solve this, now the background update is executed atomically with the posterior unlock. This avoids some reuses of the lock while updating. However this reduces performance because the window in which new requests can reuse the lock is much smaller now. This has been alleviated by using the same technique implemented in AFR (i.e. waiting some time before releasing the lock). Some minor changes also introduced in this patch: * Bug in management of 'trusted.glusterfs.pathinfo' that was writing beyond the allocated space. * Uninitialized variable. * trusted.ec.config was not created for regular files created with mknod. * An invalid state was used in access fop. Change-Id: Idfaf69578ed04dbac97a62710326729715b9b395 BUG: 1152902 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8947 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep/glusterd: Enable changelog and marker during geo-rep create.Kotresh HR2014-10-271-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PROBLEM: Geo-rep misses few a files to sync when I/O happenned during geo-rep start. ANALYSES: To use the available changelogs to handle deletes/renames, 'xsync upper limit' is introduced which limits the xsync crawl till the changelog register time. But there is a small time interval between the changelog register time and the time changelog actually enabled. If there is I/O between this interval, it will not be synced through xsync as it is beyond changelog register time and not through changelog also as changelog is not actually enabled. SOLUTION: Enable changelog and marker during geo-rep create instead of geo-rep start so that entries are captured in changelog and above said interval is nullified. Change-Id: Ic5f0457a4b67a335cbbb37d34db5f8cb8bc901c4 BUG: 1139196 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/8650 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Aravinda VK <avishwan@redhat.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* ec: Fix self-heal issuesXavier Hernandez2014-10-2113-302/+391
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Doing an 'ls' of a directory that has been modified while one of the bricks was down, sometimes returns the old directory contents. Cause: Directories are not marked when they are modified as files are. The ec xlator balances requests amongst available and healthy bricks. Since there is no way to detect that a directory is out of date in one of the bricks, it is used from time to time to return the directory contents. Solution: Basically the solution consists in use versioning information also for directories, however some additional changes have been necessary. Changes: * Use directory versioning: This required to lock full directory instead of a single entry for all requests that add or remove entries from it. This is needed to allow atomic version update. This affects the following fops: create, mkdir, mknod, link, symlink, rename, unlink, rmdir Another side effect is that opendir requires to do a previous lookup to get versioning information and discard out of date bricks for subsequent readdir(p) calls. * Restrict directory self-heal: Till now, when one discrepancy was found in lookup, a self-heal was automatically started. This caused the versioning information of a bad directory to be healed instantly, making the original problem to reapear again. To solve this, when a missing directory is detected in one or more bricks on lookup or opendir fops, only a partial self-heal is performed on it. A partial self-heal basically creates the directory but does not restore any additional information. This avoids that an 'ls' could repair the directory and cause the problem to happen again. With this change, output of 'ls' is always consistent. However, since the directory has been created in the brick, this allows any other operation on it (create new files, for example) to succeed on all bricks and not add additional work to the self-heal process. To force a self-heal of a directory, any other operation must be done on it. For example a getxattr. With these changes, the correct healing procedure that would avoid inconsistent directory browsing consists on a post-order traversal of directoriesi being healed. This way, the directory contents will be healed before healing the directory itslef. * Additional changes to fix self-heal errors - Don't use fop->fd to decide between fd/loc. open, opendir and create have an fd, but the correct data is in loc. - Fix incorrect management of bad bricks per inode/fd. - Fix incorrect selection of fop's target bricks when there are bad bricks involved. - Improved ec_loc_parent() to always return a parent loc as complete as possible. Change-Id: Iaf3df174d7857da57d4a87b4a8740a7048b366ad BUG: 1149726 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8916 Reviewed-by: Dan Lambright <dlambrig@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* performance/io-threads: Fix static analysis errorPranith Kumar K2014-10-201-4/+2
| | | | | | | | | | | | | stub->fop can be more than FOP_MAX is what static analysis is complaining. This patch doesn't allow any 'log' to be printed in the case fop value is not in the definied range. It gives EINVAL instead. Change-Id: I293381e2c1ad0ab45154b0192a637612becaf744 BUG: 1153935 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8939 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* logs: Do selective logging for errnosPranith Kumar K2014-10-203-49/+21
| | | | | | | | | | | | | | | | | | | | | Problem: Just after replace-brick the mount logs are filled with ENOENT/ESTALE warning logs because the file is yet to be self-healed now that the brick is new. Fix: Do conditional logging for the logs. ENOENT/ESTALE will be logged at lower log level. Only when debug logs are enabled, these logs will be written to the logfile. Change-Id: If203d09e2479e8c2415ebc14fb79d4fbb81dfc95 BUG: 1151303 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8918 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* ec: Fix 32 bits issues on file size calculationXavier Hernandez2014-10-202-6/+4
| | | | | | | | | | | | | | Some additional 32 bits issues have been added by a recent patch. This patch solves it. Change-Id: Ice81032fbe8e36e5ccad19a781b7876891993906 BUG: 1146903 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8882 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Emmanuel Dreyfus <manu@netbsd.org> Tested-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* ec: Fix incorrect management of healed bricksXavier Hernandez2014-10-203-7/+16
| | | | | | | | | | | | | | | | | | The final lookup made to restore final file attributes after a self-heal did clear the mask of bad bricks, causing that the final setattr won't modify any brick at all. This caused that some attriutes, specially the modification time of the file didn't get updated properly. Now the mask of healed bricks is saved before doing the last lookup. It's also used to correctly report the repaired bricks. Change-Id: Ib94083c9e1b562515dfb54f9574120f1f031dccc BUG: 1149723 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8905 Reviewed-by: Dan Lambright <dlambrig@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: statedump supportAtin Mukherjee2014-10-155-6/+263
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although glusterd currently has statedump support but it doesn't dump its context information. Implementing glusterd_dump_priv function to export per-node glusterd information would be useful for debugging bugs. Once implemented, we could enhance sos-report to fetch this information. This would potentially reduce our time to root cause and data needed for debugability can be dumped gradually. Following is the main items of the dump list targeted in this patch : * Supported max/min op-version and current op-version * Information about peer list * Information about peer list involved while a transaction is going on (xaction_peers) * option dictionary in glusterd_conf_t * mgmt_v3_lock in glusterd_conf_t * List of connected clients * uuid of glusterd * A section of rpc related information like live connections and their statistics There are couple of issues which were found during implementation and testing phase: - xaction_peers of glusterd_conf_t was not initialized in init because of which traversing through this list head was crashing when there was no active transaction - gf_free was not setting the typestr to NULL if the the alloc count becomes 0 for a mem-type earlier allocated. Change-Id: Ic9bce2d57682fc1771cd2bc6af0b7316ecbc761f BUG: 1139682 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/8665 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* heal: glfs-heal implementationPranith Kumar K2014-10-154-10/+26
| | | | | | | | | | | Thanks a lot to Niels for helping me to get build stuff right. Change-Id: I634f24d90cd856ceab3cc0c6e9a91003f443403e BUG: 1147462 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/6529 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd/geo-rep: Fix race in updating status fileKotresh HR2014-10-121-18/+26
| | | | | | | | | | | | | | | | | | | | | | | | When geo-rep is in paused state and a node in a cluster is rebooted, the geo-rep status goes to "faulty (Paused)" and no worker processes are started on that node yet. In this state, when geo-rep is resumed, there is a race in updating status file between glusterd and gsyncd itself as geo-rep is resumed first and then status is updated. glusterd tries to update to previous state and gsyncd tries to update it to "Initializing...(Paused)" on restart as it was paused previously. If gsyncd on restart wins, the state is always paused but the process is not acutally paused. So the solution is glusterd to update the status file and then resume. Change-Id: I348761a6e8c3ad2630c79833bc86587d062a8f92 BUG: 1149982 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/8911 Reviewed-by: Aravinda VK <avishwan@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* glusterd: print the peer name instead of a null UUID in a rpc failure messageAtin Mukherjee2014-10-093-111/+125
| | | | | | | | | | | | | This patch improves the failure message by printing the correct peer name instead of a blank uuid in case of rpc connection is lost/broken. Change-Id: Ia232792051f23896883b239982cb48130e3ce60e BUG: 1146902 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/8597 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* glusterd: make bricks respect 'transport.socket.bind-address'Niels de Vos2014-10-081-0/+8
| | | | | | | | | | | | | | | When GlusterD starts the brick processes, these will listen on all interfaces. When the 'transport.socket.bind-address' option is set in glusterd.vol, the brick processes should only listen on the specified hostname or IP-address. Change-Id: I8e7d1f294904081137c23f3446261329d0d13bba BUG: 1149863 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/8910 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* glusterd: pass the bind-address to starting servicesNiels de Vos2014-10-071-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | When the transport.socket.bind-address option is set to a hostname or ip-address, the services started by GlusterD fail to connect to the management daemon. GlusterD always forces the services to connect to the "localhost" hostname, even if it is not listening on that address. GlusterD should take the transport.socket.bind-address option into consideration, and pass that to the glusterfs-clients with the -s or --volfile commandline parameter. Note that this is not a change that removes all hard-coded dependencies on "localhost". This change merely makes it possible to start required services when the transport.socket.bind-address option is set. Change-Id: I36a0ed6c69342e6327adc258fea023929055d7f2 BUG: 1149863 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/8908 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* gNFS: Subdir mount does not work on UDP protoSantosh Kumar Pradhan2014-10-076-104/+376
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After enabling nfs.mount-udp, mounting a subdir on a volume over NFS fails. Because mountudpproc3_mnt_3_svc() invokes nfs3_rootfh() which internally calls mnt3_mntpath_to_export() to resolve the mount path. mnt3_mntpath_to_export() just works if the mount path requested is volume itself. It is not able to resolve, if the path is a subdir inside the volume. MOUNT over TCP uses mnt3_find_export() to resolve subdir path but UDP can't use this routine because mnt3_find_export() needs the req data (of type rpcsvc_request_t) and it's available only for TCP version of RPC. FIX: (1) Use syncop_lookup() framework to resolve the MOUNT PATH by breaking it into components and resolve component-by-component. i.e. glfs_resolve_at () API from libgfapi shared object. (2) If MOUNT PATH is subdir, then make sure subdir export is not disabled. (3) Add auth mechanism to respect nfs.rpc-auth-allow/reject and subdir auth i.e. nfs.export-dir (4) Enhanced error handling for MOUNT over UDP Change-Id: I42ee69415d064b98af4f49773026562824f684d1 BUG: 1118311 Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Reviewed-on: http://review.gluster.org/8346 Reviewed-by: soumya k <skoduri@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* ec: Fix memory leak caused by undestroyed fopsXavier Hernandez2014-10-031-1/+1
| | | | | | | | | | | | | | Operations processed by ec_dispatch_one() were not correctly completed by ec_complete(), leaving some structures in memory. Now ec_complete() also calls ec_resume() for this type of fops. Change-Id: Iaf0f2e8227399ebb735db9f1bd007593e0ece041 BUG: 1148520 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8896 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Do not hardcode umount(8) path, emulate lazy umountEmmanuel Dreyfus2014-10-035-74/+26
| | | | | | | | | | | | | | | | | | 1) Use a system-dependent macro for umount(8) location instead of relying on $PATH to find it, for security and portability sake. 2) Introduce gf_umount_lazy() to replace umount -l (-l for lazy) invocations, which is only supported on Linux; On Linux behavior in unchanged. On other systems, we fork an external process (umountd) that will take care of periodically attempt to unmount, and optionally rmdir. BUG: 1129939 Change-Id: Ia91167c0652f8ddab85136324b08f87c5ac1e51d Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8649 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Csaba Henk <csaba@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* POSIX filesystem compliance: PATH_MAXEmmanuel Dreyfus2014-10-033-4/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | POSIX mandates the filesystem to support paths of lengths up to _XOPEN_PATH_MAX (1024). This is the PATH_MAX limit here: http://pubs.opengroup.org/onlinepubs/009604499/basedefs/limits.h.html When using a path of 1023 bytes, the posix xlator attempts to create an absolute path by prefixing the 1023 bytes path by the brick base path. The result is an absolute path of more than _XOPEN_PATH_MAX bytes which may be rejected by the backend filesystem. Linux's ext3fs PATH_MAX seems to defaut to 4096, which means it will work (except if brick base path is longer than 2072 bytes but it is unlikely to happen. NetBSD's FFS PATH_MAX defaults to 1024, which means the bug can happen regardless of brick base path length. If this condition is detected for a brick, the proposed fix is to chdir() the brick glusterfsd daemon to its brick base directory. Then when encountering a path that will exceed _XOPEN_PATH_MAX once prefixed by the brick base path, a relative path is used instead of an absolute one. We do not always use relative path because some operations require an absolute path on the brick base path itself (e.g.: statvfs). At least on NetBSD, this chdir() uncovers a race condition which causes file lookup to fail with ENODATA for a few seconds. The volume quickly reaches a sane state, but regression tests are fast enough to choke on it. The reason is obscure (as often with race conditions), but sleeping one second after the chdir() seems to change scheduling enough that the problem disapear. Note that since the chdir() is done if brick backend filesystem does not support path long enough, it will not occur with Linux ext3fs (except if brick base path is over 2072 bytes long). BUG: 1129939 Change-Id: I7db3567948bc8fa8d99ca5f5ba6647fe425186a9 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8596 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* ec: Add state dump supportXavier Hernandez2014-10-031-0/+30
| | | | | | | | | | | | Change-Id: I4504f3050674dde217e79af28cb4d2b5370fe2d5 BUG: 1148010 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8891 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Emmanuel Dreyfus <manu@netbsd.org> Tested-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gNFS: allow truncate() from SETATTR over NFS for ownerNiels de Vos2014-10-021-5/+16
| | | | | | | | | | | | | | | | | NFSv3 does not have a TRUNCATE procedure, instead it is part of the SETATTR (change the 'size' attribute). SETATTR with a new 'size' succeeds on other NFS-servers, even when the owner of the file does not have write permissions. Make Gluster/NFS behave the same way, by checking if the RPC/pid comes from the NFS-server, and allow truncate() when the file is owned by the user calling SETATTR. BUG: 955753 Change-Id: I4b7cb8efe5a2032c6cd2eef6af610032f76d8b39 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/8889 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: soumya k <skoduri@redhat.com>
* cluster/afr: Add afr-v1 xattr compatibilityPranith Kumar K2014-10-016-83/+330
| | | | | | | | | | | | | All the special cases v1 handles and also self-accusing pending changelog from v1 pre-op also is handled in this patch. Change-Id: Ie10f71633fb20276f01ecafbd728f20483e7029c BUG: 1128721 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8536 Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd/quota: Heal pgfid xattr on existing data when the quota isvmallika2014-09-303-3/+40
| | | | | | | | | | | | | | | | | | | | | enable The pgfid extended attributes are used to construct the ancestry path (from the file to the volume root) for nameless lookups on files. As NFS relies on nameless lookups heavily, quota enforcement through NFS would be inconsistent if quota were to be enabled on a volume with existing data. Solution is to heal the pgfid extended attributes as a part of lookup perfomed by quota-crawl process. In a posix lookup check for pgfid xattr and if it is missing set the xattr. Change-Id: I5912ea96787625c496bde56d43ac9162596032e9 BUG: 1147378 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/8878 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Fix invalid seekdir() usageEmmanuel Dreyfus2014-09-303-3/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to POSIX, seekdir() should only be given offset obtained from telldir() on the same DIR * http://pubs.opengroup.org/onlinepubs/9699919799/functions/seekdir.html Code from afr-self-heald.c and index.c is operating outside of the specification, by doing using seekdir() with offset from a previously open/close/re-open directory. This seems to work on Linux (although with no guarantee it will always in the future). On NetBSD the seekdir() with a in invalid offset is a nilpotent operation, and causes an infinite loop, since index_fill_readdir() always restart from the beginning of the directory. The situation is fixed by using a non anonymous fd in afr-self-heald.c: we explicitely open the directory so that it remains open on the brick side during the timeframe where we want to reuse offsets in seekdir(). This requires adding an opendir fop in index xlator. If the brick was not updated, the opendir will fail and we fallback to the standard violating approach for backward compatibility on Linux. On other systems we fail since it never worked. While there, add tests to check seekdir() success in index and posix xlators, so that incorrect usage from calling code produce an explicit error instead of an infinite loop. We can only do it on non Linux systems, for the sake of backward compatibility when the brick was updated but not the client. BUG: 1129939 Change-Id: I88ca90acfcfee280988124bd6addc1a1893ca7ab Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8760 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Perform brick order check in originator node.GauravKumarGarg2014-09-291-16/+19
| | | | | | | | | | | | | | | | Currently in case of multi node cluster brick-order check for replicate volume done on every node. Its waste of time to perform brick order check on every node. This change will perform brick order check only at originator node. Change-Id: I8687fd28e587de8a280a9003b015ccd5729c9740 BUG: 1091935 Signed-off-by: ggarg <ggarg@redhat.com> Reviewed-on: http://review.gluster.org/8881 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Tested-by: Kaushal M <kaushal@redhat.com>
* USS : Decide the log entry based on the type of graph.Sachin Pandit2014-09-291-5/+12
| | | | | | | | | | | | | | | | | | Problem : When a lookup is issued, and if the entry is not found then snapview-client will log failure stating that "Lookup on normal graph failed with error Stale file handle" irrespective of type of graph it received call back from. Solution : Introduced a check to find out the graph from which the snapview-client received call-back. Change-Id: Iadd5b525c394be3675d40231711058e1cf1396cd BUG: 1146479 Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/8851 Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: Launch self-heal only when all the brick status is knownPranith Kumar K2014-09-291-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: File goes into split-brain because of wrong erasing of xattrs. RCA: The issue happens because index self-heal is triggered even before all the bricks are up. So what ends up happening while erasing the xattrs is, xattrs are erased only on the sink brick for the brick that it thinks is up leading to split-brain Example: lets say the xattrs before heal started are: brick 2: trusted.afr.vol1-client-2=0x000000020000000000000000 trusted.afr.vol1-client-3=0x000000020000000000000000 brick 3: trusted.afr.vol1-client-2=0x000010040000000000000000 trusted.afr.vol1-client-3=0x000000000000000000000000 if only brick-2 came up at the time of triggering the self-heal only 'trusted.afr.vol1-client-2' is erased leading to the following xattrs: brick 2: trusted.afr.vol1-client-2=0x000000000000000000000000 trusted.afr.vol1-client-3=0x000000020000000000000000 brick 3: trusted.afr.vol1-client-2=0x000010040000000000000000 trusted.afr.vol1-client-3=0x000000000000000000000000 So the file goes into split-brain. Change-Id: I1185713c688e0f41fd32bf2a5953c505d17a3173 BUG: 1142601 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8755 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
generated by cgit (git 2.34.1) at 2024-06-25 13:56:11 +0000